1. A three-step mechanism has been suggested for the formation of carbonyl chloride:
Step 1: Cl2 ===> 2 Cl (fast equlibrium)
Step 2: Cl + CO ===> COCl (fast equilibrium)
Step 3: COCl + Cl2 ===> COCl2 + Cl (slow)
What is the molecularity of the rate-determining step?
unimolecular
bimolecular
termolelcular
none of these
2. The elementary reaction representing the formation of ozone,
O2(g) + O(g) + M(g) ===> O3(g) + M*(g) is an example of a _________ reaction.
unimolecular
bimolecular
termolecular
tetramolecular
3.The elementary reaction, 2HI ===> H2 + I2, is an example of a ________ reaction.
unimoleculer
bimolecular
termolecular
tetramolecular
Answer Clarification:
1. tertmolecular
2. unimolecular
3. biomolecular
What is your opinion and why?
1. FOR THE FIRST ONE IT ENDS WITH MORE THAN TWO VARIABLE CONCENTRATIONS, SO IT CANCELS THE FIRST TWO.
2. THIS ONE THE REACTION CAN GO BACK AND FORTH, SINCE IS AT EQUILIBRIUM IT IS UNIMOLECULAR
3. THE REACTION CAN COLLIDE AND IS TWO VARIABLES OF CONCENTRATIONS, SO IT WOULD BE BIMOLECULAR.
1. A three-step mechanism has been suggested for the formation of carbonyl chloride:
Step 1: Cl2 ===> 2 Cl (fast equlibrium)
Step 2: Cl + CO ===> COCl (fast equilibrium)
Step 3: COCl + Cl2 ===> COCl2 + Cl (slow)
What is the molecularity of the rate-determining step?
The rate determing step is step 3. We have two particles colliding. Therefore, it is bimolecular.I don't make sense out of your answer for #1.
unimolecular
bimolecular
termolelcular
none of these
2. The elementary reaction representing the formation of ozone,
O2(g) + O(g) + M(g) ===> O3(g) + M*(g) is an example of a _________ reaction.
unimolecular
bimolecular
termolecular
tetramolecular
I don't know what M and M* are. As written the reaction doens't balance so I will leave this one. The DECOMPOSITION of ozone is a unimolecular reaction. This one, without the M and M* muddle, is a bimolecular because two particles (O2 and O) must come together. If the M and M* are catalysts, then bimolecular because two particles are reacting. If M, O2, and O must collide, then it is termolecular but termolecular reactions are extremely rare and most text say they are not "reasonable." However, as written, I don't know what it means.
3.The elementary reaction, 2HI ===> H2 + I2, is an example of a ________ reaction.
unimoleculer
bimolecular
termolecular
tetramolecular
Answer Clarification:
1. tertmolecular
2. unimolecular
3. biomolecular
I am confused about the "answer clarification" since it doesn't clarify anything. For example, there is biomolecular (is that bimolecular) and tertmolecular (is that termolcular) but those words were already written as possible answers???
Anyway, two molecules of HI must come together so this is bimolecular.
Check my thinking.
for the third question it is bimolecular reaction.
1. The molecularity of the rate-determining step in the formation of carbonyl chloride is bimolecular because two particles, COCl and Cl2, are colliding in the slow step.
2. Without further clarification on the meaning of M and M*, it is difficult to determine the molecularity of the reaction. However, based on the given reaction, if M and M* are catalysts, then it would be a bimolecular reaction since two particles, O2 and O, are reacting. If M and M* are not catalysts and must collide, then it would be a termolecular reaction, which is rare.
3. The elementary reaction 2HI -> H2 + I2 is an example of a bimolecular reaction because two molecules of HI must come together for the reaction to occur.
1. I apologize for the confusion in the answer clarification. You are correct, the molecularity of the rate-determining step in the formation of carbonyl chloride is indeed bimolecular. Step 3 involves the collision between COCl and Cl2, which are two particles, making it a bimolecular reaction.
2. As I mentioned before, without a proper understanding of the meaning of M and M*, I cannot determine the molecularity of the reaction representing the formation of ozone. It would be helpful to have more information or clarification on the role of M and M* in the reaction.
3. The elementary reaction 2HI → H2 + I2 is indeed a bimolecular reaction. Two molecules of HI collide and react to form H2 and I2, making it a bimolecular reaction. The provided clarification in the answer is incorrect as it uses unfamiliar terms such as "tertmolecular" and "biomolecular". The correct term to describe this reaction is "bimolecular".